The federal civil service was created by an Act of Congress in 1871.
Photos. There have been more than 150 earthquakes in the past week in Oklahoma, according to the Oklahoma Geological Survey (OGS).Thatâs not normal. Before 2009, the United States Geological Survey (USGS) reported Oklahoma would typically get three or fewer 3.0+ magnitude quakes a year.n the last few years, the average jumped up to about 40 significant quakes a year. Less than 2 months into 2014, Oklahoma has had more than 25 quakes registering 3.0+ magnitude in Oklahoma. Michael Lewchuk, an earthquake expert with Casady School, told KOCO, âFor Oklahoma that is an unusually large amount.
Seven of the ten largest earthquakes in the United States were in Alaska; Since 1900, Alaska has had an average of: One great earthquake (magnitude 8 or larger) earthquake every 13 years; One magnitude 7 to 8 earthquake every year; Six magnitude 6 to 7 earthquakes per year; Forty five magnitude 5 to 6 earthquakes per year; Three hundred twenty magnitude 4 to 5 earthquakes per year; An average of a 1,000 earthquakes are located in Alaska each month; 1. HAZUS 99 Estimated Annualized ...